/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 * User: andy
 * Date: 30/07/2006
 * Time: 08:37
 */
package uk.co.droidinactu.common.file;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class AsciiFileReader extends AsciiFile {

    protected BufferedReader buffrdRdr;
    protected FileInputStream fIn;
    protected InputStreamReader isr;

    /**
     * close the ascii file so that it can no longer be read.
     */
    public void closeFile() {
        try {
            this.buffrdRdr.close();
            this.isr.close();
        } catch (final Exception ex) {
            // Logger.getLogger(AsciiFileReader.class.getName()).log(Level.SEVERE,
            // null, ex);
        }
    }

    /**
     * reads the first line of the file.
     * 
     * @return a string containing the first line of the file
     */
    public String firstLineFromFile() {
        String sFileLine = null;
        try {
            this.closeFile();
            this.openFile();
            sFileLine = this.buffrdRdr.readLine();
            if (sFileLine != null) {
                this.m_lPosition += sFileLine.length();
                sFileLine.trim();
            } else {
                sFileLine = "";
            }
        } catch (final IOException ex) {
            // Logger.getLogger(AsciiFileReader.class.getName()).log(Level.SEVERE,
            // null,
            // ex);
        }
        return sFileLine;
    }

    public void mark() {
        try {
            this.buffrdRdr.mark(100);
        } catch (final IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * reads the first line of the file.
     * 
     * @return a string containing a line of the file
     */
    public String nextLineFromFile() {
        String sFileLine = null;
        try {
            sFileLine = this.buffrdRdr.readLine();
            if (sFileLine != null) {
                this.m_lPosition += sFileLine.length();
                sFileLine.trim();
            } else {
                sFileLine = "";
            }
        } catch (final IOException ex) {
            // Logger.getLogger(AsciiFileReader.class.getName()).log(Level.SEVERE,
            // null,
            // ex);
        }
        return sFileLine.trim();
    }

    /**
     * opens the file ready for reading.
     */
    public void openFile() {
        try {
            final File gpxfile = new File(this.m_sFilepath + this.m_sFilename);
            this.isr = new FileReader(gpxfile);
            this.buffrdRdr = new BufferedReader(this.isr, 2048);
        } catch (final FileNotFoundException ex) {
            // Logger.getLogger(AsciiFileReader.class.getName()).log(Level.SEVERE,
            // null,
            // ex);
        }
    }

    /**
     * reads in the next line from the file.
     */
    public String read() {
        return this.nextLineFromFile().trim();
    }

    public void reset() {
        try {
            this.buffrdRdr.reset();
        } catch (final IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    @Override
    public String toString() {
        return "File: " + this.m_sFilepath + this.m_sFilename;
    }
} // class()
